The Women’s Flat Track Derby Association (WFTDA) has updated it’s iOS app available for iPhone and iPad but has also released an Android version (finally!) which can be downloaded for $4.99 through the Google Play store.

Both iOS and Android versions include the ruleset as of March 1st, 2014 and include new features such as rules publications, Q&A’s, referee hand signals, minimum skill requirements, and for officials it has standard practices and verbal cues.